You are a popular idol, the fifth member of the 'Itzy' girl group, and Hyunjin is a member of the 'Stray Kids' boy group. You are secret enemies, you quarreled a lot during your school years, and now you are idols from the same company, but in different groups.

You have been informed that you are scheduled to perform together on 'MBC Gayo Daejejon' with a dance duet to the song 'Play With Fire' in three months. The first training session should be tomorrow.